Coolant Flush Question

[Str8Shooter]

By the way, I have the Hybrid model and there is a second reservoir for a coolant system that holds 7.2 quarts that I think it is for the hybrid battery, but the owners manual calls it a low temperature cooling circuit. My dealership and quick lube center are only addressing the coolant for the engine that is 15.3 quarts but is called the high temperature cooling circuit. The coolant in both the high and low temp circuits are the same according to the owner manual in the capacities section.

What's the deal? I can't find anything else in the owners manual other than change the "coolant, which I assume is both the high temp and low temp circuit". How do I get these fluids changed properly for the low temp circuit too? References and not assumptions are greatly appreciated.

Sponsored

 

[Antimatter22]

The manual for my '22 PB makes no mention of increased coolant flushing due to conditions. It does call out oil, spark plugs, filters, etc.

I would just call Ford back and verify it's for both circuits. I'd imagine it'll bump the price up $75-100. I doubt a jiffy lube would come close to messing with anything in the hybrid system.

 

[HammaMan]

By the way, I have the Hybrid model and there is a second reservoir for a coolant system that holds 7.2 quarts that I think it is for the hybrid battery, but the owners manual calls it a low temperature cooling circuit. My dealership and quick lube center are only addressing the coolant for the engine that is 15.3 quarts but is called the high temperature cooling circuit. The coolant in both the high and low temp circuits are the same according to the owner manual in the capacities section.

What's the deal? I can't find anything else in the owners manual other than change the "coolant, which I assume is both the high temp and low temp circuit". How do I get these fluids changed properly for the low temp circuit too? References and not assumptions are greatly appreciated.

The HV system doesn't need changed like the ICE coolant. Fluid replace every 5 years and needs vac purge / coolant system run via FDRS diagnostics procedure to constantly run pump. Top up if needed during that 5 years which is still a very generous time frame. It's low temp and doesn't degrade.

 

[Str8Shooter]

Thanks for the info everyone is providing. I'm learning. I want to keep this truck long term like the 2002 Toyota Camry I purchased new and have over 350,000 miles on that still runs and shifts great. I lean closer towards severe maintenance intervals partly because I want to keep the truck, but probably could get away closer towards moderate maintenance intervals according to the owners manual.

It's hard for me to understand 200,000 miles / 10 year coolant flushes and 10K mile oil changes. Maybe I'll believe all these wonderful maintenance intervals when Ford ups the drive train warranty to 150K miles. Because of that it seems that Ford doesn't even believe the engine will last much longer than the 2010 engines with older fluids to justify boosting warranties yet. I'll agree that fluids are getting better, even though I'm not as optimistic as many. I increased the miles between oil changes from years past from 3K Dino to around 4500 miles using full synthetic with better additive packages, and now I'll believe that the coolant flushes are probably worthy of trying out a 60K maintenance interval for the engine coolant compared to 30K miles only 10 years ago.

 

[Ricksc]

It appears that I probably should do a coolant flush. The user manual states 10 years or 200,000 miles, but as I keep reading further into the user manual it states if you heavy tow, or frequent idle more than 10 minutes an hour often that the coolant should be changed at 60,000 miles. I have never towed, but I have often idled the engine over a 3 month period while camping and running ProPower.

I am now at 60,000 miles and the coolant is a slightly orangish color . Question is should I have the dealership change it, or can I use Jiffy Lube to change the coolant. Can I depend on Jiffy Lube to use the coolant that meets the OEM Spec (Yellow Coolant?)

I would not use jiffy lube for a lawn mower oil change. $60,000+ truck why use some BS quick lube with rookies doing the work. You get what you pay for.

 

[Str8Shooter]

I would not use jiffy lube for a lawn mower oil change. $60,000+ truck why use some BS quick lube with rookies doing the work. You get what you pay for.

I use quick lube places mostly for fluid changes, not just Jiffy Lube. Actually the one I use most is the Lube Center. The advantage to me for quick lube places is you can get in and out faster and get to see them doing the work while sitting inside your car. They also have monitors that you can watch of what is happening under the car too.

There are good and bad employees everywhere, and it is easier to establish relationships with quick lube workers and get a sense of how knowledgable they are compared to a dealership where you drop off your vehicle, never meet the person working on your car and sometimes spend a half day getting an oil change. I use the Ford dealership mainly for recalls, and things that the quick lube centers do not do, like transmission filter and fluid changes.

 

[Calson]

The dealer or shop should be collecting the coolant as it can be refurbished and used again. I doubt that the added hours of engine operation with pro power while camping can be that much. It is the contractors using the truck as a job site generator who increase engine hours a great deal.

A key factor is that the engine coolant contains a lubricant for the water pump and these are expensive to replace.

Sponsored